Steam iron



FIG. 1 is a top, front and side perspective view of a steam iron showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a side elevational view thereof from the side opposite that shown in FIG. 2. 

The ornamental design for a steam iron, as shown. 